Prussian Blue PIGMENT BLUE 27 (C.I.NO.77510)
Physical Appearance : Deep Blue Powder
FINENESS : 90% passing through 300 mesh or below 50 microns
VOLATILE MATTER : Not more than 5%
OIL ABSORPTION : 60 to 90
COLOR : Bright Blue
STAINING POWER : Very good
TONE : Bright greenish or reddish
MATTER SOLUBLE IN WATER : Not more than 2%
PH VALUE : Not less than 5
LIGHT FASTNESS : Very good
ACID RESISTANCE : Excellent
ALKALI RESISTANCE : Not- satisfactory
APPLICATIONS : Printing inks
Carbon paper & Ribbon
Paints
Linoleum
Tailor’s Chalk
Leather